It must look like Stainless Steel. I sent it to the client, and received answer that I'll quote here:
The colour is fine, but there is one very small detail: Would it be possible to see a sample with the lower half of the fitting reflecting the light in the very same way as the top half. The top half is very realistic. We presume this is just a small adjustment to the light direction.
Sorry, but this is just too tough for me - don't know how to do it, so I'll appreciate any help from you guys. If needed, I can post screenshot of my settings.
P.S. I'm sorry for my bad english.